Finding the Third Proportional to 4,204,376 and 9,222,640

Step by Step Solution

1. Step 1: Write the proportion equation
   4,204,376 : 9,222,640 = 9,222,640 : x
2. Step 2: Convert to fraction form
   4,204,376/9,222,640 = 9,222,640/x
3. Step 3: Cross multiply
   4,204,376x = 9,222,640 × 9,222,640
4. Step 4: Simplify right side
   4,204,376x = 85,057,088,569,600
5. Step 5: Solve for x
   x = 85,057,088,569,600/4,204,376
6. Step 6: Final answer
   x = 20,230,609.39